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Rosewill ARC M450

The Rosewill ARC M450 has a maximum capacity of 450 Watts.

It has an 80 Plus rating of Bronze.


Rosewill ARC M450

help iconCapacity450Whelp icon+5V Output15A
help iconRelease Date04 Jan 2014help icon+12V Output37A
help iconForm FactorATX12Vhelp icon+12V Count1
help icon80 Plus RatingBronzehelp iconFan Size120mm
help iconEfficiency at 100%83.40%help iconModularno
help iconEfficiency at 50%85.84%help iconSilentno
help iconEfficiency at 20%83.13%help icon24 Pin Mobo Connectoryes
help iconLocalizationUnited Stateshelp icon4+4 Pin CPU Connectoryes
help iconInput Voltage100V - 240Vhelp icon6 Pin Connectors1
help iconInput Frequency Range50Hz - 60Hzhelp icon4 Pin Connectors4
help icon+3.3V Output20Ahelp iconSATA Connector4

Rosewill ARC M450 compatibility review

The Rosewill ARC M450 power supply has a maximum wattage output of 450W. This is a very low PSU capacity, and should only be used when powering a low power system. Remember that a higher PSU capacity does not necessarily equate to a higher wattage output and a more expensive electricity bill. In fact, you may find that a higher capacity PSU will function more efficiently than a lower capacity PSU because it is dealing with a lower percentage of its maximum load - that is, it is not being stressed to the same extent.

The Rosewill ARC M450 has an 80 Plus rating of Bronze. This means the PSU operates at average efficiency levels of at least 82%, 85%, and 82% for loads of 100%, 50%, and 20% respectively. Bronze is the fourth-best 80 Plus certificate available, and as such the Rosewill ARC M450 is very efficient and is a decent PSU choice. The actual efficiencies for this PSU are 83.40%, 85.84%, and 83.13%, for loads of 100%, 50%, and 20%.

The Rosewill ARC M450 is not modular, meaning that cables are built into the PSU itself and cannot be taken out and connected back in as necessary. This can result in difficult cable management and consequently a messy build and poor airflow.

The Rosewill ARC M450 is not designed for low volumes, meaning that its constant drone while your PC is on could potentially be noticeable and irritating, though this may only be a problem for those that require silent environments.

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